A good question, happy to help here. First, you did the right thing in verifying the DNS was unchanged. Depending on where in the recovery cycle it is restored, it is possible it would have been changed (parked).
Obviously it's best to renew before this happens. Once DNS has been interrupted, or nameservers changed, it needs to re-propagate. In most cases this is 24-48 hours (at the outside). Hopefully you should be back up already.
If 48 hours goes by and you are not, please contact 24/7 Support.
I hope that helps,
Thomas D. - GoDaddy | Community Moderator 24/7 support available at x.co/247support